Update git submodules
- Update extensions/ConfirmEdit from branch 'REL1_39' to d33da37f48d8bb1b539299e343450e20637271f0
- Localisation updates from https://translatewiki.net.
Change-Id: I29745935cdc2057ca892d9eaaa34c78ed57dbd69
- Localisation updates from https://translatewiki.net.